126933309 has 24 divisors (see below), whose sum is σ = 187273632. Its totient is φ = 82827360.

The previous prime is 126933307. The next prime is 126933337. The reversal of 126933309 is 903339621.

It is a happy number.

It is not a de Polignac number, because 126933309 - 2¹ = 126933307 is a prime.

It is a super-2 number, since 2×126933309² = 32224129867378962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126933307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108562 + ... + 109724.

It is an arithmetic number, because the mean of its divisors is an integer number (7803068).

Almost surely, 2^126933309 is an apocalyptic number.

It is an amenable number.

126933309 is a deficient number, since it is larger than the sum of its proper divisors (60340323).

126933309 is a wasteful number, since it uses less digits than its factorization.

126933309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417 (or 1414 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 36.

The square root of 126933309 is about 11266.4683463808. The cubic root of 126933309 is about 502.5645688173.

The spelling of 126933309 in words is "one hundred twenty-six million, nine hundred thirty-three thousand, three hundred nine".